Compilare: main.cpp: In function 'void Manacher()': main.cpp:20:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < s.size(); i++) ~~^~~~~~~~~~ main.cpp:27:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(s[st] == s[dr] && st >= 0 && dr < s.size()) ~~~^~~~~~~~~~ main.cpp:45:55: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(s[st] == s[dr] && st >= 0 && dr < s.size()) ~~~^~~~~~~~~~